Please do part a b and c

and explain Thank you

When you write arithmetic expressions, such as (3+4)5, you can eliminate the parentheses if you write the operators after the numbers, like this: 34+5. This was termed Reverse Polish Notation. Check th algorithm for evaluating reverse Polish expressions: a) Write Java codes to implement this algorithm. You only need to consider add, minus, multiply and divide operators with corresponding symbols as " +,, *, I". Your code should be able to handle any possible exceptions. b) Can you implement a square operand(denoted as **)? Just write the pseudo algorithm. c) What is the value of the reverse Polish notation expression 234+56173+2+4 ? How about If you read a number Push it on the stack. Else if you read an operand Pop two values off the stack. Combine the values with the operand. Push the result back onto the stack. Else if there is no more input Pop and display the result. a) Write Java codes to implement this algorithm. You only need to consider add, minus, multiply and divide operators with corresponding symbols as " +,,,l. Your code should be able to handle any possible exceptions. b) Can you implement a square operand(denoted as **)? Just write the pseudo algorithm. c) What is the value of the reverse Polish notatior expression 234+56173+2+4 ? How about 567+4+82216 ? Explain